rgb-to-hls

Note that the value of color properties (such as background-color and foreground-color) must be
RGB color objects, as made with make-rgb. You should apply the
function hls-to-rgb to an HLS color before
setting a color property to it. You can use the function rgb-to-hls to get the HLS
equivalent of an RGB color.

Copyright (c) 1998-2012, Franz Inc. Oakland, CA., USA. All rights reserved.Documentation for Allegro CL version 9.0. This page was not revised from the 8.2 page.Created 2012.5.30.